Air conditioning apparatus



y 11, 1939. s. HEADRICK' 2,165,854

AIR CONDITIONING APPARATUS Filed July 5, 1938 2 Sheets-Sheet 2 my. Q2

I y' Inventor .2222 zzad zv A ttomey Patented July 11, 1939 UNITED STATES PATENT OFFICE 1 Claim.

The present invention relates to air conditioning apparatus designed primarily for use in cooling the air in the rooms of a building and has for its primary object to utilize water from a subterranean water supply to be pumped through I a pair of cooling radiators and through which air is forced to lower the temperature thereof before feeding the same to the rooms.

A further object is to provide an apparatus of this character in which mechanical means is utilized to pump the water to the radiators and the discharge of the-water from the radiators to the supply is utilized to decrease the pumping force required to supply the water to the radiators.

A further object is to provide an apparatus of this character of simple and practical construction, which is eiflcient and reliable in performance, relatively inexpensive to manufacture and maintain in operation and otherwise well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanyingdrawings forming part hereof, wherein like numerals refer to like parts throughout, and in which Figure 1 is a side elevational view of the apparatus with parts shown in section.

Figure 2 is a sectional view taken substantially on a line 2-2 of Figure 1. t

Figure 3 is a top plan view.

Figure 4 is a vertical sectional view through one of the radiators, and

Figure 5 is a sectional view of the pump.

Referring now to the drawings in detail, wherein for the, purpose of illustration I have disclosed a. preferred embodiment of the invention, the numeral 5 designates the basement floor of a building beneath which is a subterranean water supply 6, the first floor of the building being designated at I. A pair of well tubings 8 and 9 are sunk at spaced intervals through the floor 5 into the water supply 6 and within which pipes I0 and II respectively are positioned.

Mounted upon the floor 5 is a cooling chamber I2 having one wall provided with a screened opening I3 of sufficiently fine mesh to constitute a filter for air entering the chamber, the opposite end of the chamber being provided with an upstanding duct I4 leading through the floor I, the discharge end of the duct being provided with a register I6.

Mountedin the chamber I2, adjacent the filter I3, is a cooling radiator I6 and a similar radiator I4 as clearly shown I1 is mounted in the chamber adjacent the duct in Figures 1 and 3 of the drawings. The radiators I6 and H are positioned in spaced relation and comprise upper and lower reservoirs I6 and I6 respectively connected 5 by vertically extending spaced tubes 20, the upper reservoir I8 of the radiator I6 and the lower reservoir I9 of the radiator I! are connected by an inclined pipe 2|.

To the lower reservoir I9 of the radiator I6 is 10 connected a supply pipe 22 leading to a centrifugal pump 23 shown in detail in Figure 5 and to one side of which is connected a supply pipe 26 connected to the feed pipe Ill. The feed pipe III is also provided with a manually operl5 able pump 21 and valves 28 and 29 are connected in the pipe I II in advance of the pipe 26 and also in advance of the pump 21 as will be apparent from an. inspection of Figure 1 of the drawings.

The pump 23 is operated by means of an electric motor 36 which also drives a pulley 3| over which a belt 32 is trained and arranged for operating a pulley 33 mounted in the chamber I2, said last named pulley driving a belt 34 trained over a pulley 35 on a shaft 36 supported in an elevated position above the floor 5 by brackets 31 arranged between the radiators I6 and II.

A fan 38 is mounted on the shaft 36 for drawing air through the filter I3, through the radiator I6 and through the radiator I! and forcing the same through the duct I4 into the room above the floor I.

The top reservoir I8 of the radiator I! has one end of the pipe II connected thereto, said pipe also having a valve 39 interposed therein.

In the operation of the device the radiators I6 and I1 and the pipes leading thereto are supplied with water, preferably by means of the manually operated pump 21, after which the valve 29 is 40 closed, the motor 30 started and water will continue to be forced through the radiators and discharged into the subterranean reservoir 6 through the pipe I I. At the same time, the fan 38 will be operated to draw air through the chamber I2 5 and where the same is cooled and discharged through the duct I 4.

The discharge of the water from the radiator I6 intothe radiator H and subsequently through the pipe II produces a siphoning action which 50 facilitates the feeding of the water from the pipe I9 to the respective radiators and consequently reduces the load imposed upon the motor 30.

It is believed the details of construction and manner of operation of the device will be readily 55 understood from the foregoing without further detailed explanation.

Having thm described the invention, what I claim is:

An air conditioning apparatus comprising a closed water system including a water reservoir below the system. feed and discharge pipes extending upwardly therefrom, a chamber having an air discharge duct communicating with one waILanairintakeinanoppoaitewallotthe chamber having an air iilter therein, a plurality of spaced apart radiators positioned in the'chamher in the path of the air passing therethrough, an overflow pipe connecting the upper portion of one radiator with the other radiator, said discharge duct being connected to the upper portion 0! the second named radiator, a pump connecting the teed pipe with the lower portion of the first named radiator for drawing water from the reservoir and forcing the same through said radiator and returning the same to the reservoir, a tan operatively mounted in the chamber between the radiators for drawing air therethrough and discharging the same through said duct. a priming pumpconnected in a branch pipe of said feed pipe in advance 0! said'flrst named pump. said overflow pipe preventing draining oi! the system backwardly from the second named radiator, a valve in the iced pipe in advance of both pumps to prevent draining oi the water backwardly from the tint named radiator, and a valve in the branch pipe leading to the priming pump.

BILLIE HEADRICK. 

